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Gerald D. Hines Interests 4040 One Shell Plaza Houston. Texas 77002 I Area Code 713.225-0565 May 10, 1984 Mr. Frank Bartram Administrative Services - Manager Office Facilities Shell Oil Company 901 One Shell Plaza Houston, Texas 77002 Dear Frank, Accredited Industrial Hygienists has completed their air monitoring tests and bulk sample analysis of fireproofing material in One Shell Plaza and Two Shell Plaza. Copies of the test results and a summary of proposed OSHA asbestos regulations are enclosed. Judging from these test results, it seems evident that the average office worker's exposure to airborne fibers, including asbestos, are well below EPA acceptable levels. In fact, the levels for samples taken outside the Building are higher than those taken inside. I hope that these test results satisfy your requirements. Please don't hesitate to call if I can be of further assis tance . Respectfully, Charles Elder Property Manager One Shell Plaza /nm Ends. ABS-011754 LAM 031811 (7131 477-8101 Accredited Industrial Hygienists P.O. Box 18556 Houston. Texas 77223-8556 Jones Lang Management Office Centex Building 1201 Louisiana, Suite 30Z Houston, Texas 77002 ' Attn: Mr. Lyn Grunze REPORT OF BULK ASBESTOS ANALYSIS Received: Coded: Marked: 4-19-84 00399 Three bulk samples to be analyzed for asbestos from Entex Building Sample I-Beam Insulation PI pe Duct 2 of Asbestos 1-52 N.D. N.D. Type of Fiber Chrysotlle Asbestos Fiberglass Fiberglass N. 0. - Hone Detected Note: Bulk samples are considered to contain asbestos only if 12 or more asbestos Is present. Method: Polarized light microscopy, EPA tentative method. 'Sjf\ <-- Analyst V\ _____ ' 1 n '--r^^'v L> Certification '^7-84 LAM 031812 ABS-011755 (713) 477-8101 Accredited Industrial Hygienists P.O. Box 18556 Houston, Texas 77223-8556 CONFIDENTIAL Gerald D. Hines Interests 4040 One Shell Plaza Houston, Texas 77002 Attn: Mr. Charles Elder REPORT OF BULK ASBESTOS ANALYSIS Received: 4-9-84 Coded: 00395 Marked: Eight bulk samples to be analyzed for asbestos Sample 23rd FI Hallway (T.S.P.) 25th FI Control Pit (T.S.P) 26th F1 Ofc Space (T.S.P.) #1 Level 1 (O.S.P.) #2 Lobby (O.S.P.) t3 Level 29 (O.S.P.) #4 Level 43 (O.S.P.) #5 Std. Celling tile (O.S.P.) Asbestos % Type 5-10% Chrysotlle 5-10% Chrysotlle 1-5 % Chrysotlle 5-10% 10-15% 10-15% 10-15% 0 Chrysotlle Chrysotlle Chrysotlle Chrysotlle -- Major Components -- -- -- -- -- -- -- Glass wool, cellulose, and calcium carbonate Method: Polarized light microscopy , EPA tentative method Analyst Q Py LJ Ce^rificatiion *) 4-25-84 LAM 031813 ABS-011756 (713) 477-8101 Accredited Industrial Hygienists P.0. Box 18556 Houston. Texas 77223-8556 Gerald 0. Hines Interests 2245 Two Shell Plaza Houston, Texas 77002 Attn: Mr. Morgan Hill ASBESTOS SURVEY Conducted: Coded: Subject: 4-28-84 00402 Air monitoring for airborne asbestos at Two Shell Plaza, area testing Sample Location Room 1102D Room 1530 Room 1708 Room 2109 Room 2245 Room 2386 Room 2405 Room 13106 Outside (near plant shop) Outside (Walker St) FIbers/cc 0.02 0.01 0.04 0.04 0.03 0.02 0.02 0.01 0.02 0.04 lam 031814 ABS-011757 Accredited Industrial Hygienists- P.O. Box 18556 Houston. Texas 77223-8556 r7" r Gerald D. Hines Interests 4040 One Shell Plaza Houston, Texas 77002 Attn: Hr. Charles Elder ASBESTOS SURVEY Conducted: Coded: Subject: 4-28-84 00403 Air monitoring for airborne asbestos at One Shell Plaza, area testing Sample Location Room 563 Room 1828 Room 2152 Room 2188 Room 4040 Room 4401 Room 4801 Room 4872 Outside (Louisiana St) Outside (Smith St) Flbers/cc LT 0.01 LT 0.01 0.02 0.01 LT 0.01 LT 0.01 0.01-' 0.05 0.03 '0.06 lam 031815 ABS-011758 (713) 477-8101 Accredited Industrial Hygienists P.O. Box 18556 Houston. Texas 77223-8556 PROPOSED OSHA ASBESTOS REGULATIONS (As of April 10, 1984) Limit Ceiling Fibers per cc 2 or 3 PEL (Permissible Exposure Limit) 8 hr shift 0.2 or 0.5* "Action Level" 0.2 Comments Reference No employee may be exposed at concen trations above ceiling at any time. 29 CFR 1910.1001 (b) (3) No employee may be 29 CFR 1910.1001 exposed to average (b) (4), (k) concentrations above this concentration. Semiannual personal monitoring is required; A training program is required for concen trations over 0.2 or 0.5, even if respira tors are used. Employees subject to concentrations 0.2 or greater would be con sidered "exposed." Annual medicals, in cluding chest x-rays, are required. 49 FR 14123. * OSHA is considering whether PEL should be 0.2 or 0.5 Fibers per cc. PROPOSED RESPIRATOR REQUIREMENTS (29 CFR 1910.1001 (k) (Table 1) Airborne Concentration, Fibers/cc____________ Up to 2 or 5 Up to 20 or 50 Greater than 20 or 50 Required Respirator Reusable or single use Full facepiece, or powered, air purifying Type "C" (supplied air) LAM 031816 ABS-011759